Bicycle lock



(No Model.) 2 Sheets-Sheet 2.

P. EGGE.

BIOYGLE LOCK. No. 481,390. Patented Aug. 23, 1892.

- UNITED STATES PATENT OFFICE.

FREDERICK EGGE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR OF TWO-TIIIRDS TO CHARLES E. SMITH AND OLIVER C. SMITH, OF SAME PLACE.

BICYCLE-LOCK.

SPECIFICATION forming part of Letters Patent No. 481,390, dated August 23, 1892.

Application filed June 18, 1892. Serial No. 437,184, (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK Econ, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Looks for Bicycles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to looks, but has especial reference to looks that are adapted for use in securing the front wheel of a bicycle when not in use.

In the accompanying drawings, Figure 1 is a broken perspective illustrating my lock in proper position on a bicycle. Figs. 2 and 3 are detail perspectives of the lock, showing, respectively, the normal and effective positions of the turn-button; Fig. 4, afront elevation of the lock; Fig. 5, a vertical section of the lock with the turn-button in normal position; Fig. 6, aview similar to Fig. 5, but showing the position of the pins when the button is in effective position to lock the bicycle; Fig. 7, a view similar to Fig. 6, but showing the key within the lock and the pins thereby forced in proper position preparatory to the turning of the hub to throw the button into normal position to unlock the bicycle; Fig. 8, a detail perspective showing the clamps and their securing-screw detached from the clamping-blook; Fig. 9, a plan of the lock with the button turned into its effective position; Fig. 10, a detail perspective of the hub and button secured thereto.

.Similar numbers of reference denote like parts in the several figures of the drawings.

1 represents the front wheel of a bicycle, 2 the spokes, and 3 the fork.

4 is the lock-casing, and 5 the hub, arranged within said casing so as to turn freely and having rigidly secured on its forward end,

without the casing, a turn-button 6.

7 is the key-slot within the hub.

8 are perforations (in the present instance four in number) extending through the side of the hub and leading within the slot 7, as shown in Figs. 5, 6, 7, and 10.

9 are perforations (also four in number) in the casing and extending through the latter to the hub. Within the perforations 9 are pins 10, backed by springs 11, which latter tend to project the pins 10 normally against the hub.

2 are pins within the perforations 8. I

In normal position-that is, when the button is in the position shown at Fig. 2the position of the hub-is such that the pins 9 and 10 extend in planes which are at right angles to each other and the pins 10 are projected within a recess 13 in the hub. The floor of this recess is eccentric with respect to the axis of the hub and leads toward the perforations 6 5 in the latter, while the wall 14 of such recess affords a stop against which the pins 10 abut laterally to prevent any overthrow of the button when the same is returned to normal position. The relative arrangement and location of the perforations 8 9 are such that when the button is in the position shown at Figs. 3 and 4 said perforations will register in alignment and the resilient pins 10 will be projected within the perforations 8, thereby driving the pins 12 within the key-slot and locking the hub, and consequently the button, as clearly shown at Fig. 6. WVhen the key 15 is inserted within the key-slot, the pins will be forced back against the springs 11 by reason of the predetermined contour of the key, and the two sets of pins 10 12 will therebybe arranged so that their points of contact will be in one common plane which is tangential to the hub, thus permitting the latter to be turned to bring the button back to normal position.

16 is a block, which extends laterally from the casing, and 17 are clamps, which have at their lower ends yokes 18, which latter fit the block snugly at the sides. These yokes are placed around the block at opposite ends, and through the block and both clamps is passed a screw 19, whereby the latter may be drawn together.

My improved lock is secured on one arm of 5 the fork 3 by simply fastening the clamps 17 thereto, the lock being on the inside of the fork, as shown at Fig. 1.

In looking the wheel it is merely necessary to turn the button by hand to a horizontal po- :00 sition between the spokes, in which position it is automatically looked, as hereinbefore set forth. This button is formed with a heel 20, which when said button is locked in the position shown at Figs. 3 and 9 overhangs the screw 19, so that the latter cannot be tampered with to unscrew the clamp.

A slot 21 is cut in the casing and coincides with the key-slot when the parts are in the normal position, whereby the key maybe readily removed and both slots easily cleansed from grit or other foreign matter.

I claim- 1. In a lock for bicycles, the combination of the casing having a block extending laterally therefrom, the clamps secured thereto, the hub within said casing and adapted to turn freely therein,the turn-button rigid with said hub, and locking-pins within said hub and easing, which pins operate to establish a rigidity between the hub and'casing when the button is turned to ahorizont-al position, substantially as set forth.

2. The combination of the casing, the rotary hub therein, the buttonrigid on the end of said hub, sectional screw-operated clamping devices attached to said casing, whereby the latter may be secured to the fork of a bicycle, and means for locking said hub when the button is in a horizontal position, substantially as shown and set forth.

3. The combination of the casing having perforations, the rotary hub therein provided with akey-slot and perforations leadingwithin said slot and having a shoulder and recess, as described, the turn-button secured to said hub, spring-actuated pins within the perforations in the casing, and pins within the perforations in the hub, both series of perforations being adapted to register in alignment when said button is turned to a horizontal position,substantially as and for the purposes hereinbefore set forth.

4. The combination of the hub provided with a key-slot and the casing surrounding the hub and having a slot which registers laterally with the key-slot when the hub is in normal position, substantially as set forth.

5. The combination of the casing having the block extending laterally therefrom, the clamps guided on said block, the screw extending through said clamps and block, the rotary hub within the casing, and the turnbutton secured to said hub without the casing and having a heel which overhangs the head of said screw when the button is in its horizontal or locked position, substantially as shown and set forth.

In testimony whereof I affix my signature in presence of two witnesses.

FREDERICK EGGE.

Witnesses:

J. S. FINCH, O. 0. SMITH. 

